Hundertwasser held his first speech in the nude on 12 December 1967 at the Hartmann Gallery in Munich, during an action of the Pintorarium and in presence of the other Pintorarium members, the painters Arnulf Rainer and Ernst Fuchs.

The wording of the Munich speech was preserved, whereas the second speech in the nude held shortly after at the International Student Dormitory in Vienna was not recorded. However it exists a protocol from 26 January 1968 in which Hundertwasser exposed the circumstances and motifs for his nude demonstration against rationalism in architecture.

Hundertwasser was invited in connection with the exhibition of his works at the International Student Dormitory to be present at the opening and to speak to the students.

As he assumed that the building was a modern functional construction, he took along two hollow eggs filled with India ink. He wanted to make a drastic and symbolic change in the architecture by applying black and red ink to the lifeless walls.

Hundertwasser played a record by the painter Arik Bauer (“Don’t Believe in the T-square”), then he threw the two eggs. He quickly undressed and made a speech, stating that the architecture in which the dormitory was built should be rejected and appealing to the students to oppose such oppression which forced them to study in rooms similar to prison cells.

Hundertwasser explained his motifs for the speech in the nude as follows:

„It is my conviction that man is surrounded by three layers: by his skin, his clothing and a building. Clothing and buildings have undergone a development in the last centuries which is not longer in tune with nature and the requirements of the individual. As a consequence of the mass aspects of society, inappropriate things are forced on the individual. To protest against these circumstances in the realm of architecture was the purpose of the ink demonstration: my undressing served to protest against the oppression through clothing. Now the naked individual in the natural state was to be established as the herald of protest and placed alongside corrected architecture. “ (from the protocol, Vienna, January 26, 1968; translation: courtesy TASCHEN, Cologne, 1997)

The action was pushed up to a scandal by the yellow press, mainly because it was seen as an affront against the female alderman for culture, Dr. Sander, who was present at the opening.